132 XXXI. LEGUMINOS^E. [Papilionacece. 



Twiners with blue or purple flowers . . . .10. Pueraria. 

 Pod 1-seeded. 



Flowers large, orange ; standard oblong ; wings adhering 



to keel 11. Butea. 



Flowers small, white, purple, or pink ; standard broadly 



ovate or orbicular ; wings free . . . .12. Spatholobus. 



Pod 2-valved ; leaves simple 13. Crotalaria. 



Pod articulate, generally indehiscent ; leaves simple or tri- 

 foliolate. 

 Shrubs armed with axillary spines ; leaves simple . .14. Alhagi. 

 Unarmed shrubs ; leaves trifoliolate ; flowers panicled . 15. Desmodium. 

 An unarmed tree ; leaves trifoliolate ; flowers fasciculate 



in short racemes 16. Ougeinia. 



Pod indehiscent, not articulate ; leaves imparipinnate. 

 Leaflets alternate. 

 Flowers white, lilac, or purple ; pod oblong, 1-4-seeded 17. Dalbergia. 

 Flowers yellow ; pod suborbicular, 1-seeded . . 18. Pterocarpus. 



Leaflets opposite. 

 Pod short, thick, edges not winged . . . .19. Pongamia. 

 Pod flat, edges marginate or winged . . . .20. Derris. 



1. PIPTANTHUS, D. Don. 



1. P. nepalensis, D. Don. Syn. Baptisia nepalensis, Hook. Exotic 

 Flora, t. 131. 



A shrub, with alternate, digitate, trifoliolate leaves, and large bright 

 yellow flowers. Leaflets lanceolate, entire, 2-5 in. long, sessile ; common 

 petiole less than half the length of leaflets. Stipules deciduous, connate 

 at the outer edges, so as to appear opposite to the petiole. Flowers sub- 

 verticillate, in short hairy racemes, with broad-ovate, tomentose bracts. 

 Calyx hairy, somewhat 2-lipped. Standard erect, large, broadly obcordate, 

 the margins reflexed. Stamens 10, free. Pod stipitate, broad-linear, 2-5 

 in. long, 3-10-seeded, dehiscent. 



Himalaya, Sutlej to Bhutan, in shady woods 7000-9000 ft. Hardy against 

 walls in England. Fl. May, June. 



2. SOPHORA, Linn. 



Trees or shrubs with imparipinnate leaves. Flowers yellow, white, or 

 blue-violet, racemose or panicled, terminal or axillary. Calyx-teeth short. 

 Standard erect or spreading, obovate or orbicular ; wings obliquely oblong ; 

 keel-petals nearly straight, oblong, imbricate, or connate. Stamens free, 

 or nearly so ; anthers versatile. Ovary shortly stipitate, multiovulate ; 

 stigma terminal, minute. Pod usually indehiscent, or but tardily dehiscent, 

 moniliform in our species. Seeds exalbuminous ; radicle short and nearly 

 straight, or longer and curved. 



1. S. mollis, Wall. Syn. Edwardsia mollis, Royle 111. t. 32 ; E. 

 Hydaspica, Edgew. Sometimes called Himalayan Laburnum. Vern. 

 Arghawan, Afg. j Gojdr, ghwareja, Trans-Indus ; Kun, kohen, mdlan, Salt 

 range; Tilun, tarni, katlii, Chenab; Brisari, Ravi; Pahar gungri, Kamaon. 



A shrub with showy yellow flowers. Young leaves with adpressed 

 silky pubescence ; leaflets 30-40, subcoriaceous, elliptic, J-l in. long 





